LIGO/Virgo/KAGRA S240422ed: Global MASTER-Net observations report

MASTER-SAAO robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) started inspect of the LIGO/Virgo/KAGRA S240422ed errorbox 107 sec after trigger time at 2024-04-22 21:37:00 UT, with upper limit up to 17.0 mag. The observations began at zenith distance = 65 deg. The sun altitude is -66.1 deg. The galactic latitude b = 3 deg., longitude l = 244 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/ligo_1.php?id=19616 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 117 | 2024-04-22 21:37:00 | MASTER-SAAO | (08h 09m 16.32s , -21d 44m 57.4s) | C | 20 | 17.0 | 117 | 2024-04-22 21:37:00 | MASTER-SAAO | (08h 07m 19.65s , -21d 32m 16.2s) | C | 20 | 16.9 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.